I am preparing a new edition of the book. Thanks to the efforts of Ian Ropper (http://www.chavfreezone.me.uk/) it will include wiring details of the coil box for the R1155L & N variants.
These receivers added a 1.5 to 3.0 Mhz band, deleting the 75 to 200 kHz band. The coil box wiring is completely different, but the remainder of the receiver is the same.
If you have an L or N you have been thinking of restoring, the 3rd edition is what you will need.
I hope to have it available soon.